201901455

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{640957}}^1$

素因数の和:640975

約数の個数: 24

約数和(自身を含む): 399957792

約数和(自身を除く): 198056337

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 640957, 1922871, 3204785, 4486699, 5768613, 9614355, 13460097, 22433495, 28843065, 40380291, 67300485, 201901455]

約数ペア:

[(1, 201901455), (3, 67300485), (5, 40380291), (7, 28843065), (9, 22433495), (15, 13460097), (21, 9614355), (35, 5768613), (45, 4486699), (63, 3204785), (105, 1922871), (315, 640957)]